In many intervention and evaluation studies, outcome variables are assessed using a multimethod approach comparing multiple groups over time. In this article, we show how evaluation data obtained from a complex multitrait-multimethod-multioccasion-multigroup design can be analyzed with structural equation models. In particular, we show how the…

In evaluation, the whole is greater than the sum of the parts when quantitative and qualitative approaches and methods are combined. Some circumstances in which both approaches can be effectively combined are considered, and case studies of two evaluations using multiple methods are presented. (LMO)